<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>jquery-oop</title>
    <script src="./assets/js/viewport.js"></script>
    <link href="./assets/css/main.css" type="text/css" rel="stylesheet">
</head>
<body>
    <div id="index">
        <div>我的第一个jquery框架</div>
        <button class="btn" onclick="back(event)">回退</button>
    </div>
    <script src="./assets/js/jquery-3.3.1.min.js"></script>
    <script src="./assets/js/jquery-oop-1.0.0.js"></script>
    <script src="./assets/js/main.js"></script>
</body>
</html>